20121858

素因数分解:

$2^1\times 3^6\times {\mathrm{37}}^1\times {\mathrm{373}}^1$

素因数の和:430

約数の個数: 56

約数和(自身を含む): 46601148

約数和(自身を除く): 26479290

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 81, 111, 162, 222, 243, 333, 373, 486, 666, 729, 746, 999, 1119, 1458, 1998, 2238, 2997, 3357, 5994, 6714, 8991, 10071, 13801, 17982, 20142, 26973, 27602, 30213, 41403, 53946, 60426, 82806, 90639, 124209, 181278, 248418, 271917, 372627, 543834, 745254, 1117881, 2235762, 3353643, 6707286, 10060929, 20121858]

約数ペア:

[(1, 20121858), (2, 10060929), (3, 6707286), (6, 3353643), (9, 2235762), (18, 1117881), (27, 745254), (37, 543834), (54, 372627), (74, 271917), (81, 248418), (111, 181278), (162, 124209), (222, 90639), (243, 82806), (333, 60426), (373, 53946), (486, 41403), (666, 30213), (729, 27602), (746, 26973), (999, 20142), (1119, 17982), (1458, 13801), (1998, 10071), (2238, 8991), (2997, 6714), (3357, 5994)]